Search for dissertations about: "alkenes"
Showing result 16 - 20 of 57 swedish dissertations containing the word alkenes.
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16. Mechanistic Studies of Organocopper Chemistry by NMR Spectroscopy: Conjugate Additions to Alkynes and Alkenes
Abstract : This thesis focuses on the mechanisms of organocopper reactions, in particular the reactions with activated alkynes (ynoates and ynones). These reactions are of interest in the formation of new highly functionalized double bonds with control of the stereochemistry. READ MORE
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17. Metal-catalyzed oxidative formation of C-CF3 and C-O bonds in alkenes and alkynes
Abstract : .... READ MORE
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18. Transition Metal Catalysis for Selective Synthesis and Sustainable Chemistry
Abstract : This thesis discusses the preparation and use of transition-metal catalysts for selective organic chemical reactions. Specifically, two different matters have been studied; the asymmetric hydrogenation of carbon-carbon double bonds using N,P-ligated iridium catalysts and the metal-catalyzed transfer of small molecules from biomass to synthetic intermediates. READ MORE
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19. Synthesis of 11C-labelled monosaccharides
Abstract : The synthesis of some 11C-labelled (tl/2=20.3 min) monosaccharides is presented. Terminal labelled alkenes were synthesized and selectively oxidized using asymmetric dihydroxylation (AD) and palladium(II)-promoted oxidation. The labelled polyols obtained after the AD were submitted to enzymatic oxidations. READ MORE
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20. Palladium-promoted synthesis of compounds labelled with ¹¹C : Synthesis of ¹¹C-labelled prostacyclin and prostaglandin analogues
Abstract : Palladium-promoted reactions have been employed for the synthesis of compounds labelled with 11C (t½ = 20.3 min). The precursor [11C]methyl iodide was used in palladium-promoted cross-coupling reactions with organostannanes. READ MORE